- From: Mats Palmgren via GitHub <sysbot+gh@w3.org>
- Date: Thu, 13 Sep 2018 21:49:49 +0000
- To: public-css-archive@w3.org
@frivoal
> That's not possible, as you cannot express the UA stylesheet using only the values listed as necessary for webcompat.
You're making a false assumption. Gecko is already doing exactly [that](https://searchfox.org/mozilla-central/rev/dd965445ec47fbf3cee566eff93b301666bda0e1/servo/components/style/values/specified/box.rs#1019-1021). FYI, it's fairly easy to implement in the CSS parser actually, we basically do:
```
if ("currently parsing an UA sheet")
parse_full_set_of_values();
else
parse_web_exposed_set_of_values();
```
FYI, this is the mechanism we'll use to prune our implementation of `-webkit-appearance` to the minimal set needed for web-compat, while still retaining some values for internal use.
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Received on Thursday, 13 September 2018 21:52:03 UTC